142129351 has 48 divisors (see below), whose sum is σ = 189604800. Its totient is φ = 105380352.

The previous prime is 142129349. The next prime is 142129357. The reversal of 142129351 is 153921241.

142129351 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 142129351 - 2¹ = 142129349 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142129357) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1303885 + ... + 1303993.

It is an arithmetic number, because the mean of its divisors is an integer number (3950100).

Almost surely, 2^142129351 is an apocalyptic number.

142129351 is a deficient number, since it is larger than the sum of its proper divisors (47475449).

142129351 is a wasteful number, since it uses less digits than its factorization.

142129351 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 248 (or 241 counting only the distinct ones).

The product of its digits is 2160, while the sum is 28.

The square root of 142129351 is about 11921.8014997734. The cubic root of 142129351 is about 521.8687091213.

The spelling of 142129351 in words is "one hundred forty-two million, one hundred twenty-nine thousand, three hundred fifty-one".